140974717156 has 81 divisors (see below), whose sum is σ = 310908795561. Its totient is φ = 55743184224.

The previous prime is 140974717153. The next prime is 140974717159. The reversal of 140974717156 is 651717479041.

The square root of 140974717156 is 375466.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (140974717153) and next prime (140974717159).

It can be written as a sum of positive squares in only one way, i.e., 20854248100 + 120120469056 = 144410^2 + 346584^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is not an unprimeable number, because it can be changed into a prime (140974717153) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 68333781 + ... + 68335843.

Almost surely, 2^140974717156 is an apocalyptic number.

140974717156 is the 375466-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140974717156

140974717156 is an abundant number, since it is smaller than the sum of its proper divisors (169934078405).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140974717156 is an equidigital number, since it uses as much as digits as its factorization.

140974717156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4170 (or 2085 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 52.

The spelling of 140974717156 in words is "one hundred forty billion, nine hundred seventy-four million, seven hundred seventeen thousand, one hundred fifty-six".